JP5825794B2 - 現像装置及びマグネットローラ - Google Patents

現像装置及びマグネットローラ Download PDF

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Publication number
JP5825794B2
JP5825794B2 JP2011021462A JP2011021462A JP5825794B2 JP 5825794 B2 JP5825794 B2 JP 5825794B2 JP 2011021462 A JP2011021462 A JP 2011021462A JP 2011021462 A JP2011021462 A JP 2011021462A JP 5825794 B2 JP5825794 B2 JP 5825794B2
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Japan
Prior art keywords
magnet
polarity
magnetic
magnet roller
longitudinal direction
Prior art date
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Application number
JP2011021462A
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English (en)
Japanese (ja)
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JP2012163584A (ja
JP2012163584A5 (enrdf_load_stackoverflow
Inventor
坂巻　智幸
智幸 坂巻
貴則 飯田
貴則 飯田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
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Canon Inc
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Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2011021462A priority Critical patent/JP5825794B2/ja
Priority to US13/364,758 priority patent/US8934819B2/en
Publication of JP2012163584A publication Critical patent/JP2012163584A/ja
Publication of JP2012163584A5 publication Critical patent/JP2012163584A5/ja
Priority to US14/566,850 priority patent/US9223252B2/en
Priority to US14/922,350 priority patent/US9442428B2/en
Application granted granted Critical
Publication of JP5825794B2 publication Critical patent/JP5825794B2/ja
Active legal-status Critical Current
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration
    • G03G15/0928—Details concerning the magnetic brush roller structure, e.g. magnet configuration relating to the shell, e.g. structure, composition
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
JP2011021462A 2011-02-03 2011-02-03 現像装置及びマグネットローラ Active JP5825794B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2011021462A JP5825794B2 (ja) 2011-02-03 2011-02-03 現像装置及びマグネットローラ
US13/364,758 US8934819B2 (en) 2011-02-03 2012-02-02 Developing apparatus
US14/566,850 US9223252B2 (en) 2011-02-03 2014-12-11 Developing apparatus
US14/922,350 US9442428B2 (en) 2011-02-03 2015-10-26 Developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011021462A JP5825794B2 (ja) 2011-02-03 2011-02-03 現像装置及びマグネットローラ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2015200154A Division JP5989213B2 (ja) 2015-10-08 2015-10-08 現像装置及びマグネットローラ

Publications (3)

Publication Number Publication Date
JP2012163584A JP2012163584A (ja) 2012-08-30
JP2012163584A5 JP2012163584A5 (enrdf_load_stackoverflow) 2014-03-13
JP5825794B2 true JP5825794B2 (ja) 2015-12-02

Family

ID=46600709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011021462A Active JP5825794B2 (ja) 2011-02-03 2011-02-03 現像装置及びマグネットローラ

Country Status (2)

Country Link
US (3) US8934819B2 (enrdf_load_stackoverflow)
JP (1) JP5825794B2 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6016393B2 (ja) 2012-03-15 2016-10-26 キヤノン株式会社 現像装置
JP6288976B2 (ja) 2013-07-31 2018-03-07 キヤノン株式会社 現像装置
US9268263B2 (en) 2014-05-13 2016-02-23 Canon Kabushiki Kaisha Development apparatus and image forming apparatus
JP6584138B2 (ja) * 2014-06-17 2019-10-02 キヤノン株式会社 現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6938167B2 (ja) 2016-03-08 2021-09-22 キヤノン株式会社 画像形成装置
US9791806B1 (en) * 2016-04-25 2017-10-17 Lexmark International, Inc. Developer roll having magnetic zones of varying axial length for a dual component development electrophotographic image forming device
US9977368B2 (en) * 2016-07-22 2018-05-22 Canon Kabushiki Kaisha Developing apparatus, process cartridge, and image forming apparatus
KR20220029007A (ko) * 2020-09-01 2022-03-08 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 복수의 자극을 구비하는 자기 부재를 채용한 현상기
JP7631120B2 (ja) 2021-06-21 2025-02-18 キヤノン株式会社 現像装置

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262542B2 (de) 1971-12-25 1979-05-10 Canon K.K., Tokio Prüfvorrichtung für die Konzentration von Tonerpartikel·! in der Trägerflüssigkeit eines elektrophotographischen Dispersionsentwicklers
JPS5211595B2 (enrdf_load_stackoverflow) 1972-09-29 1977-03-31
FR2227567B1 (enrdf_load_stackoverflow) * 1973-04-26 1978-04-21 Xerox Corp
JPS6279482A (ja) * 1985-10-03 1987-04-11 Fujitsu Ltd 現像装置
JP2512025B2 (ja) * 1987-10-28 1996-07-03 松下電器産業株式会社 マグネットロ―ルの製造方法
JPH0566679A (ja) * 1991-09-05 1993-03-19 Canon Inc 現像装置及びプロセスカートリツジ
JPH08250326A (ja) * 1996-01-16 1996-09-27 Canon Inc マグネットロール
JP2872145B2 (ja) 1996-09-13 1999-03-17 新潟日本電気株式会社 現像装置
JP2000114031A (ja) * 1998-10-09 2000-04-21 Toda Kogyo Corp マグネットロール
US6546222B2 (en) 2000-06-08 2003-04-08 Canon Kabushiki Kaisha Developing apparatus
JP2003122118A (ja) 2001-10-09 2003-04-25 Canon Inc 画像形成装置
JP2003255694A (ja) 2002-02-28 2003-09-10 Canon Inc 現像装置及び画像形成装置
US6973281B2 (en) 2002-04-26 2005-12-06 Canon Kabushiki Kaisha Developing apparatus with two developing chamber-rotatable member pairs
JP4136481B2 (ja) 2002-06-19 2008-08-20 キヤノン株式会社 現像装置及び画像形成装置
JP2005283685A (ja) 2004-03-26 2005-10-13 Canon Inc 画像形成装置
US7454149B2 (en) 2004-10-20 2008-11-18 Canon Kabushiki Kaisha Image forming apparatus
JP2006171100A (ja) 2004-12-13 2006-06-29 Canon Inc 画像形成装置
JP4608310B2 (ja) * 2004-12-27 2011-01-12 京セラミタ株式会社 現像装置およびこれを備えた画像形成装置
JP4860967B2 (ja) 2005-09-07 2012-01-25 キヤノン株式会社 現像装置
JP4498246B2 (ja) 2005-09-07 2010-07-07 キヤノン株式会社 現像装置
JP4819547B2 (ja) 2006-03-29 2011-11-24 キヤノン株式会社 現像装置
JP4854532B2 (ja) 2007-01-30 2012-01-18 キヤノン株式会社 現像装置
JP5136329B2 (ja) * 2008-09-26 2013-02-06 富士ゼロックス株式会社 マグネットロール
JP4963717B2 (ja) 2009-09-02 2012-06-27 キヤノン株式会社 現像装置
US8594541B2 (en) * 2011-10-21 2013-11-26 Eastman Kodak Company Method for transferring developer

Also Published As

Publication number Publication date
JP2012163584A (ja) 2012-08-30
US8934819B2 (en) 2015-01-13
US9442428B2 (en) 2016-09-13
US20120201577A1 (en) 2012-08-09
US9223252B2 (en) 2015-12-29
US20150139699A1 (en) 2015-05-21
US20160041505A1 (en) 2016-02-11

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